Time to 75% Let (Commercial) refers to the estimated period from the completion of a commercial property development to the point when 75% of its rentable space is leased to tenants. This measure is crucial in UK property development finance as it helps lenders and investors evaluate the risk associated with rental income and cash flow forecasts. Accurate predictions affect loan structuring, interest coverage, and overall project viability. Often considered alongside metrics like Time to First Occupation and Time to Full Let, it provides essential insight into a development’s leasing progress and financial performance.


This sits beneath Cash Inflow Timing, introducing a more specific variant of the measure without changing its core interpretation. It is commonly considered alongside Let-Up Absorption Rate (Units per Month), as both are closely related measures used to assess similar aspects of performance or risk. In funding terms, Time to 75% Let (Commercial) is most commonly encountered in connection with Commercial Mortgage within the property development capital stack.
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